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Sentinel Hub

Sentinel Hub, powered by Planet Labs, allows you easily perform spectral analysis and interact with Planet data without needing other software. Build solutions, analyze data at scale, and find insights in this powerful tool.

  • 2,568 Topics
  • 8,919 Replies
2568 Topics
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SentinelHub User
posted in Sentinel Hub
Get statistical data in the EO Browser

I do not have much experience for the analysis of the data. I need to see if someone can help me in the following cases: I need to download some data table from a specific region, an excel format would work for me. In the EO Browser, I have doubts about the Moisture Index, does that index show the humidity present in the plant? or how does it differ from the NDWI index? regards…No tengo mucha experiencia para el análisis de los datos. Necesito ver si alguien me puede ayudar en los siguientes casos: Necesito descargar alguna tabla de datos de una región en especifico, un formato de excel me funcionaría. En el EO Browser, tengo dudas con el índice de Moisture Index, ¿ese índice muestra la humedad presente en la planta? o en que se diferencia con el índice de NDWI?  

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SentinelHub User
posted in Sentinel Hub
google colab (python) to fetch images from sentinel-hub erroe

Hello , I am using google colab (python) to fetch images from sentinel-hub …it was working fine and all but the next day when I ran the code again I got an error in the get_data() command … UnidentifiedImageError: cannot identify image file <_io.BytesIO object at 0x7fb0c3f0c9b0> Its weird to me that when I restarted the run session as a whole and closed and reopened the note it worked … (not an efficient solution ) So does anyone know what is this issue and how can I solve it ?

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SentinelHub User
posted in Sentinel Hub
Landsat 8 cloud segmentation approach

Hi folks,I read about your Landsat 8 cloud segmentation approach here:Medium – 31 Mar 21Clouds Segmentation in Landsat 8 imagesGetting more valuable data from Landsat-8 missionReading time: 7 min read  … and here:github.comsentinel-hub/custom-scripts/blob/master/landsat-8/clouds_segmentation/script.js// 1- definition of math functionsvar abs = Math.abs;var ceiling = Math.ceil;var cos = Math.cos;var exp = Math.exp;var floor = Math.floor;var log = Math.log;var sin = Math.sin;var sqrt = Math.sqrt;var truncate = Math.trunc;var round=Math.round;// 2- definition of output colors for representation of pixels (can be modified) var WHITE= [1,1,1];var BLACK = [0.0, 0.0, 0.0];var RGB = [2.5*B04,2.5*B03,2.5*B02]var custom = [2.5*B03,2.5*B04,2.5*B02]; //this one can be modified according to user's wish // 3- actual representation of the two classes (can be changed according to user wish)This file has been truncated. show original  I like the simplicity of your approach and implemented it in the goo

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Sinergise Team
posted in Sentinel Hub
About the Sentinel@AWS category

Accessing Sentinel data from the Earth on AWS Open Public Dataset

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SentinelHub User
posted in Sentinel Hub
Labelling of image

Dear experts, I am working on a project to detect fire based on the multi-spectral data. My current process is manual - reviewing, based on the actual fire infirmation or based on data from MODIS, each image for the specific location and time period and flag them accordingly. Besides being time consuming, this has scope for many errors. Is there a better option to download the fire and no-fire data (either image or the underlying bands). There are some eval script that does the fire masking (which I am following to revalidate), but I want to minimize the false positives. Without proper labeling, the rest of the code will not function properly. Any pointer would be highly appreciated. My preference is to use the non-visible spectrum, but I am not able to find the right way to label them. Also, when downloading .png or .jpg, what would be an ideal resolution, especially if you only have longitude and latitude? Does it make sense to add a bigger buffer for the bounding box or a smaller bu

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SentinelHub User
posted in Sentinel Hub
Bucket does not exist

Hi all,I try to use “batch” in Request Builder and followed all the cascading guides to set up a bucket at Creodias cloudferro. I updated the policy and the response is:result = s3.get_bucket_policy(Bucket=bucket_name)pprint(result[“Policy”])('{“Version”: “2012-10-17”, “Statement”: [{“Sid”: “Sentinel Hub permissions”, ’'“Effect”: “Allow”, “Principal”: {“AWS”: ’‘“arn:aws:iam::ddf4c98b5e6647f0a246f0624c8341d9:root”}, “Action”: [“s3:"], ’'“Resource”: [“arn:aws:s3:::JensContainer2”, ’'"arn:aws:s3:::JensContainer2/”]}]}’)But in Request Builder i get this error “Bucket does not exist”.Does this mean, that the connection to the cloud is okay ?What could be the most likely next thing to check ?Best wishes! 

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SentinelHub User
posted in Sentinel Hub
S2cloudless post-processing parameters

Hi, I’d like to find right post-processing parameters values without having to do lots of tests (and then compare the results). I didn’t found any table in documentation. In the notebook, one can find these values for 10m Sentinel-2 bands : threshold=0.4, average_over=4, dilation_size=2. But on this forum, i read “average_over=22, dilation_size=11” (still for 10m resolution images). I suppose I should use the ones from the notebook (which is ~2 years newer), but is there any table with up-to-date parameters values for multiple resolutions out there ? Thanks !

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SentinelHub User
posted in Sentinel Hub
Não consigo utilizar a api pelo javascript

olá, não consigo gerar as imagens através da api utilizando o javascript. Quando utilizo o cURL consigo normalmente, mas com o javascript não consigo de jeito nenhum. Teria como me enviar um código javascript de requisição de imagens NDVI?

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SentinelHub User
posted in Sentinel Hub
Sentinel and Planet TCI image difference

We created TCI images from sentinel via stacking RGB bands and scaling the values and similarly for the planet image downloading the analytic product and stacking the RGB bands after scaling them. We find stark differences in the appearance of TCI images from sentinel, Planet, and Planet thumbnail for Caofedian region [ 38°55’46.20"N, 118°31’3.17"E] for the date 2018-09-22. Could you let us know what could be the possible issue here that the planet thumbnail and planet TCI images are so different given that all the images are of the same date?Planet Thumbnail image of Caofeidian Planet TCI image of Caofeidian Sentinel TCI image of Caofeidian

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SentinelHub User
posted in Sentinel Hub
CustomOAuth2Error

I seriously don’t get why I keep getting such an error constantly. My trial account expires in 28 days. This is its current status This is the same error I get literally every time I execute something: . The HTML report shows the same error. PS: I am positive I set up every thing correctly ! I am in a desperate need for help !

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SentinelHub User
posted in Sentinel Hub
MessageAttributes in SNS filter

Hi, We are using the AWS opendata SNS arn to get the newest scenes when they are uploaded.We are not interested in all scenes, only particular Tilegrids. Now with SNS we can filter on messageAttributes, so placing there a utmzone, latitude or grid would be great for users to not be having to process each new scene.see here: Amazon SNS message filtering - Amazon Simple Notification Servicebut the messageAttribute object of the SNS is empty. Why did sentinelhub choose to not make the SNS messages filterable? Thank you, 

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SentinelHub User
posted in Sentinel Hub
Timelapse it doesn't seem to retrieve any data

Hello everyone, I wich you all doing well. I’ve been working on incorporating a time-lapse of NDVI (Normalized Difference Vegetation Index) into my WebGIS using the Custom Script Editor. I’ve applied the script provided by Sentinel Hub in the Custom Script Editor, but unfortunately, it doesn’t seem to retrieve any data. I’m wondering if there’s a method or approach to successfully integrate this time-lapse image data into my WebGIS platform thanks

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SentinelHub User
posted in Sentinel Hub
How to open jp2 files from DownloadResponse objects

Hi, I’m downloading scene bands from Sentinel Hub using the get_data method of the AwsTileRequest class. I’m passing “decode_data=False” as an argument to get_data, because I want the original jp2 files. After the get_data method returns, I try opening the file but I’m unable to extract the data properly. I’ve tried both of the following methods, and each fails in a different way: rasterio.open(BytesIO(data.content)). rasterio.open(data.content). Can someone point me in the right direction? Please note that I know how to download the numpy files - I don’t need help with that. My issue is with getting the underlying jp2 file. Thanks in advance! P.S Note that I’m using Python 3.10 and rasterio 1.3.3

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SentinelHub User
posted in Sentinel Hub
Using request builder to access planet data via my own api key

Hi there, I would like to integrate some commercial data into my web app configured to align with sentinel’s OCG services. But before I purchase a package, I would like to test the feasibility with minimum cost. So I came up with the following approach: I will use the request builder to order some planet scope images, but using my own api key created several years ago when I registered at Planet Lab with an ‘Education and Research Standard (PlanetScope)’ account. I have 25 km square quota every month. When I clicked ‘prepare’, it says ‘you don’t have sufficient permission for this action, please contact support’. It looks like this api key is not what the request builder is expecting, and the request builder only takes those keys offered with package purchasing. I’m wondering if I could use, or at least test with, my own api key. I think my question is related to this post: Accessing Plant data. It would be great if you help me solve this. Thank you very much1

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SentinelHub User
posted in Sentinel Hub
Processing API request

Greetings to all! I hope everyone is doing well. I am currently utilizing the Processing API within my VSCode environment to retrieve images. I’ve also incorporated a function into the script to determine the minimum and maximum values. Please note that I’m not using the Sentinel Hub editor; the code has been integrated directly into my VSCode setup. const CLIENT_ID = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; const CLIENT_SECRET = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; const fromDate = "2020-07-01T00:00:00.000Z"; const toDate = "2020-09-01T00:00:00.000Z"; const dataset = "S2L1C"; // NDVI image let minVal = 1; let maxVal = -1; // Function to update min and max values function updateMinMaxValues(val) { if (val < minVal) minVal = val; if (val > maxVal) maxVal = val; } const evalscript = ` //VERSION=3 //This script was converted from v1 to v3 using the converter API //NDVI EVALSCRIPT if (dataMask == 0) return [0,0,0,0]; //ndvi var val = (B08-B04)/(B08+B04); // =====

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SentinelHub User
posted in Sentinel Hub
Eopatch coordinates

Hello I use eopatch_to_dataset and new_coordinates to get long and lat from the EOPatch . I get two array of coordinates but when I check the size of these arrays I find that they are more less then the size of the EOPatch . The EOPatch size is 160000 and the size of coordinates arrays is 400. Any help please !

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SentinelHub User
posted in Sentinel Hub
How to calculate a standard deviation and average of a band specific

Dear, I am new in Sentinel Hub and I need to download different bands from sentinel with the following statistical filter: I will download only band 08 of a historical serie with standard deviation of the Band 08 < 200 I will download only band 04 of a historical serie with mean of the Band 04 < 250 So, I put here an example of code that I have used without success: if (standard_deviation(B04) < 200) { if (standard_deviation(B08) < 250) { } } Please, can you send any idea? I have read some documents but I have not found anything until this moment. Best,

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SentinelHub User
posted in Sentinel Hub
Missing Cloud Cover Selection Option

Hi, when i try to export time series from EO there isn’t the option for selecting the percentage of cloud cover. If you see the picture below, in several tutorials it is located where i put the red rectangle. How can i get this function? thank you.

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SentinelHub User
posted in Sentinel Hub
Issue rendering NDVI in a polygon

The following code works if I remove the “geometry” prop, showing a NDVI map. But it doesn’t work with this prop, can someone explain why ? What’s wrong with my polygon ? I’m using this website to validate my polygons:https://arthur-e.github.io/Wicket/sandbox-gmaps3.html <MapContainer center={{ lat: -3.7547641972, lng: -38.5609603807021 }} zoom={13} scrollWheelZoom={true} style={{ height: "800px", width: "100%" }} > <TileLayer url="https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}" /> <Marker position={{ lat: -3.7255, lng: -38.5208 }}> <Popup> A pretty CSS3 popup. <br /> Easily customizable. </Popup> </Marker> <WMSTileLayer version="1.3" layers="NDVI" format="image/png" crs={CRS.EPSG4326} attribution='© <a href="http://www.sentinel-hub.

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SentinelHub User
posted in Sentinel Hub
KMZ file loads fails in multiple provinces

Hey all, new user here! I need to import a polygon grid from ArcMap to do remote-sensing analysis. I noticed that exporting .shp to .kmz allows me to visualize polygons adequately in Manitoba. However, when trying to import a similar polygon grid in Alberta or Saskatchewan, only one polygon shows up on the map. (image of what shows on EO-browser affter importing the kmz file in Saskatchewan) Has anyone encountered this before? Thank you in advance!

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SentinelHub User
posted in Sentinel Hub
Instead of ROS image.....download other city images

Hi Does any one have idea about this? Instead of ROS image…can i download other city images (preferred Pune, India)and perform operations, is it possible? If any one looking or tried for same thing let me know Help for this issue will be greatly appreciated ! I am also looking for suggestions,Thanks!

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SentinelHub User
posted in Sentinel Hub
Can we use sentinel on the managed AWS server

I was wondering, if there is any way to use sentinel with the managed AWS server. As, I don’t want to stuck in the management of AWS server and I totally want to dedicate all my efforts to what I do best and that is handling GIS platform for distribution and as the trend is of managed servers is on the growing and now even the top notch firms are moving towards the managed servers. Their are companies who claims to take all the pain of managing the server as the likes of Cloudways which among those companies who are providing the managed Amazon servers and are well re known for their work.

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SentinelHub User
posted in Sentinel Hub
How to access ice thickness data

Hello, I am new to EO Browser, and am hoping I can extract ice thickness data. So far I have used the Sentinel-2 data to download images and scene classification maps, but I’m not sure if these contain thickness data, or if I should be looking elsewhere. Thank you for any help you can provide.

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SentinelHub User
posted in Sentinel Hub
Examples of Cartopy Plotting Code

Just wondering if there are any public examples of how to plot scenes onto maps using cartopy? I’ve been struggling with this, but I’m sure my issue could be solved if I could follow an example.

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SentinelHub User
posted in Sentinel Hub
Sentinel 2A and 2B Harmonisation process implementation for raw data

As per this link Sentinel-2 processing baseline changes and harmonizeValues Harmonisation process between Sentinel 2A and 2B has been implemented for data post Jan 2022. Can anyone guide how this harmonisation process can be implemented on data obtained from AWS S3 bucket for all the years before 2021 as well as post 2022. Thanks

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